My unity is broken. I wont reinstall again.

[Hugo Leonardo Marques Silva]

Unity is not open in my Ubuntu 12,04

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: nautilus 1:3.3.91-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic-pae 3.2.9
Uname: Linux 3.2.0-18-generic-pae i686
ApportVersion: 1.94-0ubuntu2
Architecture: i386
Date: Wed Mar 7 01:18:35 2012
ExecutablePath: /usr/bin/nautilus
GsettingsChanges:
 org.gnome.nautilus.window-state geometry '800x550+62+24'
 org.gnome.nautilus.window-state maximized true
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: nautilus -n
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: nautilus
StacktraceTop:
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 ?? () from /lib/i386-linux-gnu/libc.so.6
 __assert_fail () from /lib/i386-linux-gnu/libc.so.6
 _XAllocID () from /usr/lib/i386-linux-gnu/libX11.so.6
Title: nautilus crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to precise on 2012-03-07 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #905686, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.